Am I too skinny for BBL? (photo)

It is difficult to determine whether you would have enough fat for a BBL with only the photos that you posted. Additionally, an in office exam would be the most accurate assessment of your body fat. I recommend that you schedule a consultation with a Board Certified Plastic Surgeon who performs this surgery on a regular basis and be evaluated. I have successfully performed BBL on patients who have been told by other physicians that they do not have enough fat for the procedure, so it really depends on what you are looking for, and how much harvestable fat that you have. Good Luck!

Hello dear!
Thanks for the question and provided information as well.
Based on your pictures, you are a great candidate for liposuction with moderate BBL, and I think you'll get very good results. 
Liposuction allows your plastic surgeon to transform your entire shape. You can improve your abdomen, thighs, hips, back and flanks, and of course your buttock, to give you a nice heart shape.
In general, you need to be physically healthy and at a stable weight, have realistic expectations, be a non-smoker and your BMI needs to be 30 or less.
l recommend you to make an appointment with a board certified plastic surgeon to talk about your goals and anything you need to know.
Good luck :)